I tried it out for a week with my SSII and 19 and with the right holster I think it could be a pretty good option. It generally concealed well for me, and with practice I think it could be significantly faster than the 3:30 position.

The SSII is definitely not the holster to use long term, though. The cant made getting the grip and drawing awkward, and it rode just a little too deep to be comfortable while sitting, which is what I do most of the day.

I think I'm going to order a Raven ACR and a couple of mounting options and give it a shot. Just curious if anyone has any thoughts...

The appendix is located in the lower right quadrant of the abdomen, or more specifically, the right iliac fossa.[2] Its position within the abdomen corresponds to a point on the surface known as McBurney's point (see below). While the base of the appendix is at a fairly constant location, 2 cm below the ileocaecal valve [2], the location of the tip of the appendix can vary from being retrocaecal (74% [2]) to being in the pelvis to being extraperitoneal. In rare individuals with situs inversus, the appendix may be located in the lower left side.

I appendix carry if I am running into the store or something with my 642. I just shove the Nemesis holster down my pants and tighten my belt. For me it's actually the most comfortable carry position as well as the most concealable for me. Only problem is I can't sit down with it

I appendix carry. It conceals quite easily and is comfortable enough to sit/drive with. Most importantly, it's accessible when I'm seated, like in my car. I think if the clip was offset a little less, it would be a little more comfortable to carry though. It's an Alessi APX holster. This holster is versatile enough that when I'm doing yardwork and stuff and don't want it in front of me when I'm constantly bending down and standing up and stuff, I can comfortably slip it around back too, and I assume it would conceal fairly well there.

Here are a few shots from a couple weeks ago, and some I took today. I put a button-up on over my sweater so you can see what it looks like without a clingy shirt on too.
ibdirtybathroomandharvestgoldsink

i have the vanguard. it actually works exceptionally well. in fact, i'm using it right now. it needs to wrap around a belt or something sturdy. the belt (obviously) will rip the guard from the gun when you draw but also you can adjust it so it also keeps the gun riding at a desired high in relation to the waistline.

Raven is the flavor of the week for the tacticool crowd right now so I figure if it blows I could probably turnaround and sell it pretty quick. I do like the fact that it has lots of adjustment because I can tell it will need to be "just right" to be comfortable in AC position, especially with some Glock 19 size.